Portable roller device



FIG. 1 is a perspective view of a portable roller device embodying our design, with the portable roller device being depicted in a closed position;

FIG. 2 is a side view of the portable roller device with the portable roller device being depicted in a closed position, with the opposite side view being a mirror image thereof;

FIG. 3 is a different side view of the portable roller device with the portable roller device being depicted in a closed position, with the opposite side view being a mirror image thereof;

FIG. 4 is a top perspective view of the portable roller device but depicting the portable roller device in an open position;

FIG. 5 is a side view of the portable roller device with the portable roller device in an open position, with the opposite side view being a mirror image thereof;

FIG. 6 is a top view of the portable roller device with the portable roller device in an open position; and,

FIG. 7 is a bottom view of the portable roller device with the portable roller device in an open position.

The broken lines shown in the figures depict portions of the portable roller device that form no part of the claimed design. 

CLAIM The ornamental design for a portable roller device, as shown and described. 